| event | round | table | player one | result | player two |
| 2002 World Championship | 16 | 23 | Thoren, Jens (1891) | Lost 0-2 | Okamoto, Jin (1898) |
| Pro Tour Chicago 2003 Masters | 1 | 5 | Thoren, Jens (1946) | Lost 0-2 | Okamoto, Jin (1916) |
| Pro Tour Yokohama 2003 | 5 | 49 | Thoren, Jens (1838) | Lost 1-2 | Okamoto, Jin (1805) |
| Pro Tour Kobe 2004 | 4 | 92 | Thoren, Jens (1818) | Won 2-1 | Okamoto, Jin (1865) |